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18073088 = 29113209
BaseRepresentation
bin100010011110…
…0011000000000
31021000012121122
41010330120000
514111314323
61443211412
7306422135
oct104743000
937005548
1018073088
11a224640
126076b68
13398a347
14258658c
1518beec8
hex113c600

18073088 has 40 divisors (see below), whose sum is σ = 39405960. Its totient is φ = 8212480.

The previous prime is 18073073. The next prime is 18073103. The reversal of 18073088 is 88037081.

It is an interprime number because it is at equal distance from previous prime (18073073) and next prime (18073103).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4028 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (985149).

Almost surely, 218073088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18073088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19702980).

18073088 is an abundant number, since it is smaller than the sum of its proper divisors (21332872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18073088 is an equidigital number, since it uses as much as digits as its factorization.

18073088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238 (or 3222 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 18073088 is about 4251.2454645668. The cubic root of 18073088 is about 262.4283728987.

The spelling of 18073088 in words is "eighteen million, seventy-three thousand, eighty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 512 704 1408 2816 3209 5632 6418 12836 25672 35299 51344 70598 102688 141196 205376 282392 410752 564784 821504 1129568 1643008 2259136 4518272 9036544 18073088